Answer:
the root is -2 , 0
Step-by-step explanation:
Answer:
The chemist needs to add 400mL of 40% solution.
Step-by-step explanation:
The equation
gives the percent concentration 
of the final mixture, when 
mL of the 40% solution are added.
Now we are asked, how many milliliters of the 40% solution should the chemist add to get final percent concentration 
; this is just a matter of solving the equation
and we solve it the following way:
Thus, the chemist needs 400mL of 40% solution to get 30% concentration of the final mixture.
64 ounces of mulch and 32 ounces of seedfor. There are 16 ounces in a pound, so you multiply the number of pounds by 16.
Y=15x+8. because if you have 15 dollars per jersey and u dont know how many jerseys you have, the u have x amount of jerseys. and each order is 8 dollars
